Water-heater.



J. J. LAWLER.

WATER HEATER.

APPLICATION FILED 213.10, 1912.

1,1233%. Patented Jan.5,1915.

llll l/E/V TOR Jbmes j law/er I A TTOR/VEY THE NORRIS PETERS 60.. PHOTOL|THO., WASHING VON D. C.

JAMES J. LAWLER.,'OF PELHAM, YORK.

WATER-HEATER.

Specification of Letters Patent.

Patented J an. 5, 1915.

Application filed February 10, 1912. Serial No. 676,787.

To all whom it may concern:

Be it known that 1, JAMES J. LAWLER, a citizen of the United States, and resident of Pelham, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Water- He'aters', of which the following is a specification.

This invention relates to water heaters in which steam is used as a heating medium, and has for its object the production of a water heater, composed of a series of sections or units, coupled together to increase heating and storage capacity, each section having within it a coil of pipe and being complete in itself.

A further object is to provide a comparatively short coil of steam pipe so that the water of condensation is quickly carried off and out from the interior of the water chamher.

The accompanying drawing shows my invention.

Figure 1 is a vertical elevation, the upper section or unit being shown in center section, the middle and lower section being broken away, and Fig. 2 is a sectional view on line mm of Fig. 1. Similar reference characters denote like parts in the two views.

The cylinder, 1, is a casting, provided at each end with a flange, 2, 3 respectively the faces being true. A boss, 4, near the upper flange is for the steam inlet and a boss, 5, near the bottom flange is for the steam outlet. Equi-distant apart, holes are provided in the flanges 2 and 3 for the passage of machine bolts, 6. The bosses, 4: and 5, are recessed and pierced for the reception of nipples, 7, and 8, upon which flanged bushings 9 and 10 screw to form stufling boxes, the packing, 11, making a tight joint. A lock nut, 15, prevents turning. On the inner end of each nipple a coupling or fitting, 12, 13, is screwed, these fittings being fastened to a coiled pipe 14, which pipe may be of copper, brass or any suitable metal.

The outer end of the nipple, 7 is connected up with the steam supply pipe, 16, and the nipple, 8, is connected with. the return or condensed water pipe, 17. In the bottom section only, an inlet 18 is provided for the cold water supply.

The bottom cover, 19, has the outer edge 19 provided with holes for bolts, 6, to connect it with the lower cylinder, a number of liegs, 20, elevating the entire heater from the A blow-off pipe, 21, is screwed into the bottom cover for draining off the water or sediment, if any. i

The upper cover, 22, is exactly the same as the lower cover except that it has no legs, the central opening, 23, being for the outlet of the heated water. Any suitable valve, 24, may be used to control the steam supply, which may be done manually or automatically as may be preferred.

Such being the construction, the operation is as follows: Any number of sections may be used, depending entirely on the quantity of water to be heated and passed through, or heated and stored, or heated to a certain temperature. Exhaust or live steam may be used. The sections are bolted together with suitable packin between the flanges and the steam and water connections are made. The water to be heated. enters at the lower section and as it becomes heated, it rises, naturally. The steam enters each coil, and as the heat is absorbed by the water surrounding the coil, the condensation is discharged from each section, whereby fresh steam enters the inlet and is in turn condensed. Each section has a separate supply of steam to its own coil, and gives greater heating power by introducing steam into the heater at several different points; each coil has its own outlet whereby there is less travel for the condensation in escaping from the steam coils, thus making every inch of steam coil in each section a live, heating surface. If it is desired to add to the service in any manner, the top cover is removed, another section or two is placed in position, bolted in place, and connected up with the service pipes. Or if it is desired to examine or repair any section, the device is easily and quickly taken apart and reassembled. If necessary to remove a section, the top cover can be bolted on the remaining sections, and the water heater used, though not as efficiently as when all the sections were in use. The water in the lowest section rises and coming in contact with the coil in the next upper section, its temperature is raised and this process of heating continues until the top section is reached. Any change in temperature displaces the stored water and and lower end thereof, each coil pipe connected at its ends to said nipples, a main steam supply pipe parallel with the units and of a length adapted to have connection with the nipples upon one side of the units and adapted to feed steam of uniform temperature .to said coils, and a main outlet pipe parallel with the units and of a length adapted to have connection With the nipples upon the other side of the units.

2. A Water heater composed of a series of shell units, each unit provided with an opening upon opposite sidesadjacent the upper and lower end thereof for the reception of a nipple, an independent helical coil pipe for each of said units connected at its ends with the nipples, the coil convolutions of .each section being arranged in vertical having branch connections with the opposite nipples. i

Signed at New York city in the county and State of New York this ninth day of February A. D. 1912.

JAMES J. LAVLER.

Witnesses CHARLES V. DWYER, EDGAR M. GREENBAUM.

copiesof this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0." 

